Unit 2 Test Review
Quiz by Amanda Wood
High School
Biology (2017)
Texas Essential Knowledge and Skills (TEKS)
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19 questions
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- Q1Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more —proteinsnitrogenstructureenergy30s
- Q2Which of the following biomolecules typically contains both nitrogen and phosphate?ProteinNucleic acidCarbohydrateLipid30s
- Q3Which of these substances stores the most energy?one gram of carbohydrateone gram of alcoholone gram of fatone gram of protein30s
- Q4A biomolecule that is a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell?storing genetic informationstoring energybuilding tissuecatalyzing cellular reactions30s
- Q5Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?nucleic acidproteinlipidcarbohydrate30s
- Q6Which of the following macromolecules are a prominent part of animal connective tissue such as cartilage and keratin?proteinslipidsnucleic acidscarbohydrates30s
- Q7What occurs at G1?Period of growth and development between mitotic divisionsCleavage of cytoplasm and formation of the cell plateNuclear membrane, nucleolus, and chromatin fadeChromatin condenses to form chromosomes30s
- Q8What process results in two complete strands of DNA from one original strand?TransformationTranslationReplicationTranscription30s
- Q9During prophase, chromosomes become visible, the spindle forms, the nucleolus and nuclear envelope disappear. In which cellular process does prophase occur?MitosisGrowth phaseInterphaseDNA replication30s
- Q10The diagram below represents the cell cycle. During the cell cycle, normal cells exit the G1 phase and enter the G0 phase where they rest. Typically, cells will reenter the cycle at G1 prior to going on to S phase. However, abnormal cells, such as cancer cells, may not be allowed to enter the G0 phase to rest. As a result, these cells will most likelymutate during G2 phasedie after DNA replicationfail to complete mitosiscontinuously repeat the cycle30s
- Q11Leukemia is cancer of the body’s blood-forming tissues. A leukemia patient’s bone marrow produces abnormal white blood cells which do not function properly. A pharmacology company is trying to develop drugs to regulate the production of abnormal white blood cells. Which of the following processes is most likely affected by this new drug?Cellular divisionCellular respirationCell differentiationTransport of molecules30s
- Q12During DNA replication, a chemical called DNA polymerase acts as an enzyme to quickly bond nucleotides on the complementary strand. DNA polymerase belongs to a large class of biomolecules that perform most of the actions carried out by organisms called ―CarbohydratesNucleic AcidsLipidsProteins30s
- Q13Chromosomes are composed of two types of biomolecules. One of the biomolecules in chromosomes is called DNA, which functions as the genetic code. The other biomolecules in chromosomes are called histones, which bind the DNA tightly for cell division. Genes in DNA have the code for making histones. Based on the information above, which types of biomolecules are in chromosomes?Proteins and nucleic acidsProteins and carbohydratesNucleic acids and carbohydratesCarbohydrates and lipids30s
- Q14A photomicrograph of onion root tip cells during mitosis is shown below. Which phase of mitosis is occurring in the cell indicated by the arrow?TelophaseAnaphaseProphaseMetaphase30s
- Q15Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?MitosisInterphaseTranslationTranscription30s
